CVE-2021-4478 Dräger CC-Vision Basic and CC-Vision E-Cal Out-of-Bounds Write via Malicious GDT File
Attackers can execute arbitrary code or crash the application by tricking users into opening a malicious .gdt file in Dräger CC-Vision software.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-4478?
CVE-2021-4478 is a high-severity memory corruption vulnerability in Dräger CC-Vision Basic, published on 2 Jun 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Dräger CC-Vision Basic before 7.5.3 and Dräger CC-Vision E-Cal before 7.2.5.0 contain an out-of-bounds write vulnerability when loading .gdt files. A crafted .gdt file can trigger a buffer overflow during file parsing, allowing an attacker to crash the application or execute malicious code on the underlying system.
Weakness: CWE-787
Which versions are affected by CVE-2021-4478?
How do I fix CVE-2021-4478?
No fix has been published for CVE-2021-4478 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-4478 being exploited?
There is no known exploitation of CVE-2021-4478 in the wild and no public exploit code.
Sources
Also known as GHSA-3rp5-97gw-r98q.